The Rose-colored Starling(Sturnus roseus) is a long-distance migratory bird. Xinjiang is the breeding area of the bird in China. Breeding behaviors were studied in Hami natural grasslands from May to July in 2009. The results showed that: ① Adult S. roseus built their nests in covert sites. The inner and outer diameters of the nests were 8.08 ± 0.38 cm and 25.25 ± 2.82 cm,and the height and depth were 4. 55 ± 1. 65cm and 63.00 ± 35.34cm,respectively(n=8); ② S. roseus reproduced only one clutch within a year,the mean of clutch size was 4. 25 ± 0. 71,n=8,and the incubation and survive rates were 94. 12% and 88. 24% (n=34), respectively; ③ During nestling period,parental feeding times showed significant difference among different hours within a day (P <0.01),with 6:30-7:30 am and 10:30-12:30 am being the peaks,and averaged 7.6 ± 1.1 min for the intervals of feedings; ④ The growth curve of the nestlings was"S"shape. The results provide the theoretical guidance for the management approach of increasing the population numbers of S. roseus.